; ModuleID = 'if.c'
source_filename = "if.c";target部分直接照抄，修改一些文件名
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"
; Function Attrs: nofree norecurse nounwind uwtable 这句话照抄，下面定义的语句是定义main函数，参数照抄
define dso_local i32 @main() local_unnamed_addr #0 {
    ;分配空间给a
  %1=alloca float,align 4
  ;注意float的赋值用十六进制赋值
  store float 0x40163851E0000000, float* %1, align 4
  ;获取a的值
  %2=load float,float* %1,align 4
  ;判断条件a>1
  %3=fcmp ugt float %2,1.00
  ;如果%3为真，跳转%4，否则跳转%5
  br i1 %3,label %4,label %5
4:
;返回233
  ret i32 233
5:
;返回0
  ret i32 0
}